It will be a couple more months before I can get any good motorsport photography in... I can't wait! Great photos, and a favorite subject of mine. Thanks for starting this thread, I hope it fills with lots of great motorsport shots.

That Hillman Avenger in the top photo was built by the Rootes Group in the early 1970s. It was later sold by Chrysler Europe as the Talbot Avenger. Here in the colonies the car was sold as the Plymouth Cricket. I love rallying. I even drive a Subaru Impreza hatch.

I didn't use AF-C as it simply isn't up to it. I either pre-focused on a point, or I used AF-S. As long as you pick your spot so the rate of change of the focal plane isn't too great and give yourself some DoF leeway with your aperture, both work well.